[DRILL-7354] Replace org.apache.drill.exec.record.SchemaBuilder usage with BatchSchemaBuilder

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.16.0
• Assignee: Unassigned
• Reporter: Vova Vysotskyi
• Created: 19/Aug/19 10:10
• Updated: 19/Aug/19 13:27

Description

org.apache.drill.exec.record.SchemaBuilder uses "old style" for creating BatchSchema instances, but we have another class BatchSchemaBuilder which is also was intended to create BatchSchema but using a new approach for schema resolution.

Here is a list of some issues which will appear during the replacement:

• The wrong contract between equals and hashCode in MaterializedField.java;
• An issue similar to DRILL-7308 - somewhere scale and precision are set to zero, but in other places, it is not set, so it causes assertion errors;
• Assertion error in RepeatedListColumnMetadata.java - passed implementation-specific children - $data and $offsets;
• Other issues.